Copperhead 7mm, 180gn hybrid (information)
Posted: Thu Mar 13, 2025 4:31 pm
I have just received 4 boxes (2000) of 180gn Copperhead projectiles from Ken Melgaard.
In the hand the bullets look identical to the Berger apart from the meplat.
I've had no internet or phone for 24 hrs which gave me too much time on my hands so I decided to measure and compare them to the Berger 180 hybrid.
The meplat is smaller on the Copperhead, less ragged and more square to the axis of the projectile than the Berger. Berger on the left in the image.
Both bullets have the same boat tail length of 0.240" approximately. This is difficult to accurately measure.
The Copperhead is slightly shorter than the Berger (see image below)
The Copperhead has a shorter bearing surface than the Berger
The Copperhead has a longer nose length than the Berger.
The measurements were made using Hornady bullet comparator inserts. The relative position of the inserts is shown in the diagram. Measurements were taken from the base of the bullets for each of the available comparator sizes in order to plot an approximate curve of the bullet nose. A CAD program was used to make the plot.
Given all of the above the Copperhead should have a slightly higher BC.
Raw data in inches from the measurements is in the table below. The Copperhead appears to have Berger J4 jackets.
Price was cheaper than the last lot of Bergers that I bought.
I haven't shot them so I can't comment on their precision on target.
Pete
In the hand the bullets look identical to the Berger apart from the meplat.
I've had no internet or phone for 24 hrs which gave me too much time on my hands so I decided to measure and compare them to the Berger 180 hybrid.
The meplat is smaller on the Copperhead, less ragged and more square to the axis of the projectile than the Berger. Berger on the left in the image.
Both bullets have the same boat tail length of 0.240" approximately. This is difficult to accurately measure.
The Copperhead is slightly shorter than the Berger (see image below)
The Copperhead has a shorter bearing surface than the Berger
The Copperhead has a longer nose length than the Berger.
The measurements were made using Hornady bullet comparator inserts. The relative position of the inserts is shown in the diagram. Measurements were taken from the base of the bullets for each of the available comparator sizes in order to plot an approximate curve of the bullet nose. A CAD program was used to make the plot.
Given all of the above the Copperhead should have a slightly higher BC.
Raw data in inches from the measurements is in the table below. The Copperhead appears to have Berger J4 jackets.
Price was cheaper than the last lot of Bergers that I bought.
I haven't shot them so I can't comment on their precision on target.
Pete